著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Yusuke Yokota and Tadashi Ishikawa,Gradient field of undersea sound speed structure extracted from the GNSS-A oceanography: GNSS-A as a sensor for detecting sound speed gradient,SN Applied Sciences,2523-3963,Springer Science and Business Media LLC,2019-06-10,1,7,693,https://cir.nii.ac.jp/crid/1363670319679368576,https://doi.org/10.1007/s42452-019-0699-6